1 files changed, 48 insertions, 0 deletions
diff --git a/libsanitizer/include/sanitizer/esan_interface.h b/libsanitizer/include/sanitizer/esan_interface.h
new file mode 100644
index 000000000000..cd18f34fc00b
--- /dev/null
+++ b/libsanitizer/include/sanitizer/esan_interface.h
@@ -0,0 +1,48 @@
+//===-- sanitizer/esan_interface.h ------------------------------*- C++ -*-===//
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of EfficiencySanitizer, a family of performance tuners.
+//
+// Public interface header.
+//===----------------------------------------------------------------------===//
+#ifndef SANITIZER_ESAN_INTERFACE_H
+#define SANITIZER_ESAN_INTERFACE_H
+
+#include <sanitizer/common_interface_defs.h>
+
+// We declare our interface routines as weak to allow the user to avoid
+// ifdefs and instead use this pattern to allow building the same sources
+// with and without our runtime library:
+//     if (__esan_report)
+//       __esan_report();
+#ifdef _MSC_VER
+/* selectany is as close to weak as we'll get. */
+#define COMPILER_RT_WEAK __declspec(selectany)
+#elif __GNUC__
+#define COMPILER_RT_WEAK __attribute__((weak))
+#else
+#define COMPILER_RT_WEAK
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// This function can be called mid-run (or at the end of a run for
+// a server process that doesn't shut down normally) to request that
+// data for that point in the run be reported from the tool.
+void COMPILER_RT_WEAK __esan_report();
+
+// This function returns the number of samples that the esan tool has collected
+// to this point.  This is useful for testing.
+unsigned int COMPILER_RT_WEAK __esan_get_sample_count();
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // SANITIZER_ESAN_INTERFACE_H